How long is the flight from Rennes to Southampton?

For as low as £245, KLM can have you in Southampton from Rennes in 3h 25m. Rennes and Southampton are separated by a distance of 200 mi.

In terms of precipitation, rainfall in Southampton ranges from 25.0 - 76.0 inches per month. December is typically the wettest month, when rainfall can reach 76.0 mm. July is typically the driest time to visit Southampton when rainfall is around 25.0 mm.

If weather is an important factor for your trip to Southampton, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 18.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 4.0 C).

What is the cheapest time of day to fly from RNS to SOU?

When flying from Rennes to Southampton, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from Rennes to Southampton that include hotel bookings?

Yes. In addition to deals on Rennes to Southampton flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Rennes to Southampton?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Rennes to Southampton.

Can I find deals for business class flights from Rennes to Southampton?

Yes. Cheapflights offers flight deals from Rennes to Southampton by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£170+ Cheap Flights from Rennes to Southampton

Cheap flight deals from Rennes to Southampton

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

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Cheapest flights from Rennes to Southampton
Explore the most affordable flight options available from Rennes to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2026.

Thu 1/1014:25 -

1 stop3h 25m

Mon 5/1017:20 -

1 stop19h 35m

Deal found 15/9£245

Tue 27/1016:45 -

1 stop16h 25m

Tue 3/1117:35 -

1 stop21h 40m

Deal found 12/9£248

Thu 1/1017:45 -

2 stops15h 55m

Mon 5/1019:20 -

2 stops21h 05m

Deal found 15/9£257

Sat 24/1017:20 -

1 stop17h 35m

Sat 31/1009:25 -

2 stops23h 55m

Deal found 16/9£260

Tue 13/1014:25 -

1 stop19h 20m

Tue 20/1009:05 -

2 stops24h 15m

Deal found 15/9£303

Tue 27/1018:00 -

2 stops15h 50m

Tue 3/1109:20 -

2 stops29h 55m

Deal found 12/9£304

Mon 28/914:25 -

1 stop19h 10m

Fri 2/1017:20 -

1 stop22h 30m

Deal found 12/9£335

Find flight deals from Rennes to Southampton

Round-trip from	£245
One-way from	£170
Popular in	August
Cheapest in	January
Average price	£107

KLM
1/10-5/10
2 total stops
23h 00m total
Rennes to Southampton

Search Deals

KLM
19/12-31/12
1 total stop
15h 45m total
Rennes to Southampton

Search Deals

Highest demand for flights based on searches. 12% potential increase in price (£12 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£4 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Rennes to Southampton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

RennesSouthampton

RNS Rennes St Jacques - SOU Southampton Eastleigh

RNSSOU

Rennes St Jacques

Fri 25/12

16:45-08:55

1 stop17h 10m

Southampton Eastleigh

Wed 31/12

00:00-00:00

Nonstop0h 00m

£170

Fastest return journey

RennesSouthampton

RNS Rennes St Jacques - SOU Southampton Eastleigh

RNSSOU

Rennes St Jacques

Thu 24/12

16:45-08:10

1 stop16h 25m

Southampton Eastleigh

Wed 31/12

00:00-00:00

Nonstop0h 00m

£170

RennesSouthampton

RNS Rennes St Jacques - SOU Southampton Eastleigh

RNSSOU

Rennes St Jacques

Wed 23/12

11:05-08:10

2 stops22h 05m

Southampton Eastleigh

Wed 31/12

00:00-00:00

Nonstop0h 00m

£184

RennesSouthampton

RNS Rennes St Jacques - SOU Southampton Eastleigh

RNSSOU

Rennes St Jacques

Thu 1/10

14:25-16:50

1 stop3h 25m

Southampton Eastleigh

Mon 5/10

17:20-13:55

1 stop19h 35m

£245

RennesSouthampton

RNS Rennes St Jacques - SOU Southampton Eastleigh

RNSSOU

Rennes St Jacques

Sat 24/10

17:20-09:55

1 stop17h 35m

Southampton Eastleigh

Sat 31/10

09:25-10:20

2 stops23h 55m

£260

RennesSouthampton

RNS Rennes St Jacques - SOU Southampton Eastleigh

RNSSOU

Rennes St Jacques

Sat 19/12

11:05-08:55

2 stops22h 50m

Southampton Eastleigh

Wed 31/12

00:00-00:00

Nonstop0h 00m

£260

RennesSouthampton

RNS Rennes St Jacques - SOU Southampton Eastleigh

RNSSOU

Rennes St Jacques

Tue 27/10

16:45-17:05

1 stop25h 20m

Southampton Eastleigh

Tue 3/11

17:35-10:20

2 stops15h 45m

£262

RennesSouthampton

RNS Rennes St Jacques - SOU Southampton Eastleigh

RNSSOU

Rennes St Jacques

Tue 13/10

14:25-08:45

1 stop19h 20m

Southampton Eastleigh

Tue 20/10

09:05-10:20

2 stops24h 15m

£303

RennesSouthampton

RNS Rennes St Jacques - SOU Southampton Eastleigh

RNSSOU

Rennes St Jacques

Tue 27/10

18:00-08:50

2 stops15h 50m

Southampton Eastleigh

Tue 3/11

09:20-16:15

2 stops29h 55m

£304

RennesSouthampton

RNS Rennes St Jacques - SOU Southampton Eastleigh

RNSSOU

Rennes St Jacques

Mon 28/9

14:25-08:35

1 stop19h 10m

Southampton Eastleigh

Fri 2/10

17:20-16:50

1 stop22h 30m

£335

Flights are sorted by cheapest return flights first.

Deals found on 12/9

Showing 1-10 of 11 resultsSorted by cheapest first

Best time to book a flight from Rennes to Southampton

Have a flexible travel schedule? Discover the best time to fly to Southampton from Rennes with our price prediction graph.

RNS-SOU

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

How long is the flight from Rennes to Southampton?
For as low as £245, KLM can have you in Southampton from Rennes in 3h 25m. Rennes and Southampton are separated by a distance of 200 mi.
Can I find deals for flights from Rennes to Southampton that include hotel bookings?
Yes. In addition to deals on Rennes to Southampton flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Rennes to Southampton?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Rennes to Southampton.
Can I find deals for business class flights from Rennes to Southampton?
Yes. Cheapflights offers flight deals from Rennes to Southampton by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Cheap flights from Rennes to Southampton from £170

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Rennes to Southampton

Cheapest flights from Rennes to SouthamptonExplore the most affordable flight options available from Rennes to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2026.

Explore the most affordable flight options available from Rennes to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2026.

Best flights from Rennes to SouthamptonDiscover carefully curated flight deals from Rennes to Southampton that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Discover carefully curated flight deals from Rennes to Southampton that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Last-minute flights from Rennes to SouthamptonDiscover last-minute flight deals from Rennes to Southampton. Data last updated 17 September 2026 and is based on user searches.

Discover last-minute flight deals from Rennes to Southampton. Data last updated 17 September 2026 and is based on user searches.

One-way flights from Rennes to SouthamptonSearch for one-way flight options from Rennes to Southampton. Find affordable one-way fares based on user searches. Data last updated 17 September 2026.

Search for one-way flight options from Rennes to Southampton. Find affordable one-way fares based on user searches. Data last updated 17 September 2026.

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Best time to book a flight from Rennes to Southampton

Have a flexible travel schedule? Discover the best time to fly to Southampton from Rennes with our price prediction graph.

Related info for your journey

How long is the flight from Rennes to Southampton?

Can I find deals for flights from Rennes to Southampton that include hotel bookings?

How can I find direct flights from Rennes to Southampton?

Can I find deals for business class flights from Rennes to Southampton?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Rennes to Southampton

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Complete your trip

Complete your trip to Southampton by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to England

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Search flights from Rennes to Southampton by cabin class

Find flights from Rennes to Southampton, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Rennes and Southampton flights

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Cheapest flights from Rennes to Southampton
Explore the most affordable flight options available from Rennes to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2026.

Best flights from Rennes to Southampton
Discover carefully curated flight deals from Rennes to Southampton that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Last-minute flights from Rennes to Southampton
Discover last-minute flight deals from Rennes to Southampton. Data last updated 17 September 2026 and is based on user searches.

One-way flights from Rennes to Southampton
Search for one-way flight options from Rennes to Southampton. Find affordable one-way fares based on user searches. Data last updated 17 September 2026.